Upper body opening/closing mechanism for electronic equipment

Details Upper body opening/closing mechanism for electronic equipment Upper body opening/closing mechanism for electronic equipment

1991-06-21

1993-08-31

Dorner, Kenneth J.

Supports: cabinet structure

With movable components

Having biasing means

16306, 16308, 220264, 220335, A47B 9500

Patent

active

052403190

ABSTRACT:
An upper body opening/closing mechanism for a piece of electronic equipment that has a lower body constituting a lower portion of the piece of electronic equipment, an upper body for normally covering the upper surface of the lower body, the upper body being rotatable about one end thereof in order to expose the upper surface of the lower body, a holding member for holding the upper body at a position where the upper surface of the lower body is covered by the upper body, and an elastic member normally contacting the upper body for biasing the upper body in a direction for exposing the upper surface of the lower body by exerting an elastic force when the retained condition of the upper body maintained by the holding member is released. The elastic constant of the elastic member is set so as to balance the closing force, due to a weight of the upper body, exerted in a closing direction when the upper body is rotated up to a first predetermined angle where the weight is exerted at a center of gravity of the upper body, and the upper body opening/closing mechanism is provided with a reverse biasing member for accumulating an elastic energy thereof in a direction opposite to the opening direction of the upper body when the rotation angle of the upper body exceeds the first predetermined angle and reaches a second predetermined angle where the weight of the upper body is exerted at the center of gravity thereof in the opening direction.

REFERENCES:
patent: 3166080 (1965-01-01), Neale
patent: 4193164 (1980-03-01), Okayama
patent: 4616765 (1986-10-01), Katoh
patent: 4856142 (1989-08-01), Fukunaga
patent: 5028913 (1991-07-01), Kitamura

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